meter (N/m2)‚ or pascals (Pa). 3. Slowly drag the temperature (T) slider back and forth. (Note: In this Gizmo‚ the Kelvin scale is used to measure temperature. On the Kelvin scale‚ 0 degrees is absolute zero‚ the coldest possible temperature. Absolute zero is equal to -273.15 °C or -459.67 °F) A. How does the change in temperature affect the speed of the molecules? __If the temperature is colder the molecules move slower and if the temperature is hotter the molecules move faster.
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Title: Boiling Red Water Materials: Water A clear glass or plastic cup Food Colouring (Optional) 1/4 cup Vegetable Oil 1 tsp Salt Procedures: Fill a glass 3/4 full with water Add 5 drops of food colouring Add the oil Add salt How it works: The salt brings the oil down with it as it sinks to the bottom of the bottle. When it reaches the water‚ the salt dissolves and the oil is then free to float back to the top. NOTE: this is not originally
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Temperature and Thermometers The Temperature of an object is a measure of the hotness or coldness of that object. An alternative way to think of temperature is to say that “the temperature of an object is a number – on some manmade scale – that indicates the hotness of the object”. ‘Hotness’ in turn is a measure of the kinetic energy of the molecules of the material. Note: You must use the term ‘hotness’.* The SI unit of temperature is the Kelvin (K)* Relationship between degrees Celsius
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from the bed‚ she tiptoed through the boxes which lay everywhere and put a kettle of water onto boil. Waiting‚ she glanced over all her possessions‚ grateful she had the whole day before her. She scooped instant coffee into the cup and poured in now boiling water. Stirring the coffee‚ she tried to decide where to begin. She took a quick sip of coffee and searched her box of books. She ordered them neatly on a shelf. Then‚ she lifted her suitcase onto her bed. She unlatched the clasps and opened it and
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− ( − 6 ) = _______ − 2 − 10 = _______ − 8 − ( − 8 ) = _______ − 8 − 8 = ________ m. − 16 − 11 = _______ Last night the temperature in New York City went down to 4°F. In Antarctica‚ the temperature went down to − 20°F. What is the difference between the two temperatures? answer: _____________ In Antarctica‚ the temperature air temperature is − 5°F . The temperature of the nearby water is 33°F. How much colder is the air than the water? answer: _____________ Super Teacher Worksheets − www.superteacherworksheets
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Group No. Date: Leader : Section: Members: Experiment no: 1A Data and Results: Initial Temperature: To = 25 degrees Celsius Final Temperature: Tf = 100 degrees Celsius Rod | Initial length | Change in Length | Coefficient of Linear Expansion(Exp) | Coefficient of Linear Expansion(Theo) | % Error | Steel | 40 | .035 | 1.17 x 10 / C | 1.1 x 10^-5/ C | 6.36% | Copper | 40 | .055 | 1.8 x 10 ^-5 /C | 1.7 x 10^-5 /C | 5.88% | Computation : Conclusion: 1. A bemetalli
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The piece of metal is longer than the piece of wood b) Solution 1 is much darker than solution 2. c) The liquid in beaker A is blue. d) The temperature of the liquid is 60°C. e) At least two of these (a-d) are quantitative observations. ANS: d) The temperature of the liquid is 60°C. Page: 1.2 5. A quantitative observation a) contains a number and a unit. b) does not contain a number. c)
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The Boiling Frog Theory on Population Systems thinkers have given us a useful metaphor for a certain kind of human behavior in the phenomenon of the boiled frog. The phenomenon is this. If you drop a frog in a pot of boiling water‚ it will of course frantically try to clamber out. But if you place it gently in a pot of tepid water and turn the heat on low‚ it will float there quite placidly. As the water gradually heats up‚ the frog will sink into a tranquil stupor‚ exactly like one of us in a
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Investigation into how the focal length of a lens affects the temperature at the focal point Research & Rationale: In my project I will be looking in to how different lenses with varying thicknesses and therefore focal points magnify and intensify light passing through it. To do this I will be measuring the temperature of an object behind the lens‚ at the focal point. The study and research of lenses was not part of the course this year‚ so I thought it would be more interesting to study a new
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| 1. | | Passing an electric current through a certain substance produces oxygen and sulfur. This substance cannot be a(n) Your Answer: | element. | | | An element cannot be broken down into other elements. | | 2. | | Pick the chemical change that occurs when a lit match is held under a piece of metal. Your Answer: | match burns | | | Chemical changes‚ which release heat and light‚ occur during the combustion process. | | 3. | | Which identification is incorrect for the elements
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